Grain-door.



I PATENTBD DEG. 3, 1907. R. 3. TICHENOR.

` GRAIN DO0R.v APPLIOATION nun MAY 11, 1907,

J /ll/ 7// J I To all 'whom 'it may concerm I UNITED STATES PATENT OFFICE.

I ROBERT R. TIOHENOR, OF FEELEY, MINNESOTA;

GRA'IN-DOOR.

No s72,479.

S pecification of Letters Patent.

- ?atentati Dec. 3, 1907.

v Application filed May 11. 1907; Serial Ne; 373l198.

. Be it known that I, ROBERT RTI0HEN0R, acitizen of theUnit'ed States,"residing at' Feeley, in the County of Itascaand State of Minnesota, have invented a new and 'useful Grain-Door, of which the following is' a. specificaton. i f

My invention relat s, to gram-doors 'for freightcars; and .theobject is to provide a vl Simple, cheap' buteifici'ent metallic car door and-mproved means fo' holding it both i When it, is in use and when :it-is carried idle. This object l attan by the onovel Constructhe accomp anying drawing, in which Figu'e lisa sectional vewaofa portion of a freight car-showing my invention appliedthereto. Fig.- 2 is a vertical-s'ection on the line a'a in Fig l. Fi 3 is a sectional top view on the line?) I in igl.

. tion and arrangement of partsiillustrated in 15.

Referring to the 'drawing reference; numerals, 2 designates the side wall 'of a freight-car-of ordinary constructipn having the usual ,side-door opening 3 and frame 4.

` 5 is a door made economically by using thin p sheet ir'on andstiifeniig'it by angle iron or steel ribs 6 all along its edges, and also angle iron ribs 7 intermediate the edges ofthe door, and eventruss-braces 8 across the'ribs 7 to prevent bul ing outward of the door'when the car is fil ed With grain.

To the frames at both sides 'of the 'door opfiningl secure hollow metal casings 9, of w 'ch the one to the left in Fg. is 1 n secton so as to eXpose the mechansm' nsde,-

and which is the same in both` -casi ngs, as follows': In and by the casing is guded to slide horizontally a slide 10,' having at its.

front edga beveled face 11,'whichcoacts with a forwardly projeted face c'asing to form a V-sha ed groove for the reception of the ed e'of t e' dpor, no matter'of what form the e ge maybe in the present instanceit is shown as being square. In sad slide or plate 10 are fixed `two studs 13,

which are engaged by slantingslots` 14 formed in a plate 15, having Slots 16 engaging pins 17 fixed in the casing, so'that the I plate is guided to move vertically while its sector, and, a finger-latch 22 control 'slots 14-"move the plate 10 back and forth -ho'rzontally The pl ate 15 is moved by hav ing an upward projection 18. pivoted at 18% to an L-shaped, lever 19, fulcrumed on a toothed sector 20 on which it may be held in i various positions by a catch 21 engagiing e ng e I .Of What I claim is catch@ When said levers 19 arein the %psh tion shown in Fig. 1 the plates 15 .fit tig tly' against the side edges of'the door, and when the levers are, thrown into the position indicated in dottedline to the'rght in 1 the -plates lrecedebackinto the casings and the dooris'free to escape between the edges` 23 of thecasings into the car, where it is sus-' pended and' stored away ,by the following meansz' tween the inner' door 5 and the regular Iouter door 5 are fixed bea-ingsfzin which are journaled the ends of& revoluble shaft' 2 5,

In the upp'er corners of'the'doclffrani beto which are fixed 'the upperlends of two chains 26, having their 'lower ends fixed to the npper edge of'the do'or., Near the middle of the shaft is fixed a worm gear 27,- engaged' by a wormscrew 28, turned by a crank 29 the-upper door frame.

and being journaled in a bracket 30 fixed to From this-description it will be understood that by turning the worm-screw the door may be more or less raised', and in any such position it may be held by applying the le- 19 'to the slides. 15 and 10. And When the door -is not in use for hauling grain or similar small goods', then the chains are Wound onto the shaft until the door is close 'up to the shaft, its lower edge is then Sprung upward andinward and Secured to the roof o that purpose. v

` I am aware that in my U. S. PatentNo.

thecar by the usual means (not shown) for 8'10,893 'I have'shown some kind of slides takjected faces-or fianges 12, horizontally movi able plates guided to` move one in each casing and having each a heveld front edge forming to gethe'' With the' face 12 of the casing a V-shaped gro ove for the edge of the .car door, and means for noving and holding the plates in various positions. v p

2, -The co'mbination with .a freight car, of hollow casings provided upon each side of the door-opening and having the forwardly pro jected faces or fianges 12, horizontally mov- With -a freight-car', of

able plates guided to move one ineach casng and having each a beveled front' edge fort'n-' ing together With the face 12 of the -casing a V-sh'aped groove for the edge of the car'- door, and meansfor movng a nd holding the plates in various positions, said means con `sisting of stucls in `tl1e plates, uprght slides holloW cesings provided upon each side of the i door-opening and having the forwardly projected faces-or flanges 12,horizontally mov-v and avng each a bevelecl front edge forming together with the face, 12 of the oasing a able filetes guided to move one in each oasng V-sheped groove for the edgeofgthe car door,

and n'e'ans f'or movng and holding the plat'es in various positions, said meanseonssting of studs in the 'plates upright slides guided to slide vertically in the casings end-having (li- `Lgonal slots engaging. the studsnnd an ex'- tension rojected above the 'casing, ;anL-

shaped ever pivotally mounted uponthe casing and having' one "ar-m pivotally con-' nectetl to the extension of :the slide, I and 'ineans for holding the lever in variouspos'k.

tions, the letter means consistingof a, toothed sector upon the casing; a catch carred by the lever andedapted to engage thetoothedsece. i

toyand-a finger-.operatecl latch on the -lever I controlling the catch.

In testimony whereof I niysignatnre,

in presence of tWo Witnesses.. v

witnesses:

FRED JOHNSON,

KARL l/V. HEYMAN r .ROBERT TICHENOR: 

